What is the meaning of "low" in this definition?
puff, … 4. Life; existence: tailors' > (low) gen.: from ca. 1880. As in never in one's puff, never …
In Eric Partridge's Dictionary of Slang and Unconventional English, eighth edition (1984), page 930, entry for "puff".
1. The sign > means become(s); became.
2. "gen." stands for general(ly); usual(ly),
as explained on Page xxix, Abbreviations and Signs.
This answer gives some clues, but not enough for my understanding.
Does "low" refer to the low frequency of use of the word "puff"? In this case, it is surprising that it does not appear in the abbreviations page. Unless its meaning is too obvious to be explained.